Citrate polyesters of guerbet of alcohols and their alkoxylates as polycarbonate lubricants

Abstract

The invention deals with the preparation, compositions, and application of certain high molecular weight hydrophobic citrate polyesters of guerbet alcohols and their alkoxylates, which are useful in polycarbonate processing.

What is claimed is: 
     
       1. A polycarbonate resin composition containing an effective mold releasing amount of a guerbet citrate ester mold release agent conforming to the following structure: ##STR9## R is selected from; ##STR10## or ##STR11## n has a value from 1 to 15; m and o independently range from 0 to 5; R 1 , R 2  and R 3  are independently selected from ##STR12##  wherein R 4  and R 5  may be the same or different saturated aliphatic groups; EO is ethylene oxide; PO is a propylene oxide group; x, y and z are independently between 0 and 10, said ethylene oxide being present in block or random manner by optionally premixing the oxides and the total carbon content of the alcohol derived portion of the molecule, in each instance, ranging from about 12 to about 40 carbon atoms.   
     
     
       2. The composition of claim 1 wherein R 4  and R 5  each independently range from C 6  H 13  to C 10  H 21  and x, y and z each independently range from 0 to 2. 
     
     
       3. The composition of claim 1 wherein R 4  is C 6  H 13 ,   R 5  is C 10  H 21 , and   x, y and z are each 0.   
     
     
       4. The composition of claim 1 containing from about 0.025% to about 1.0% by weight of the guerbet citrate ester. 
     
     
       5. A compound conforming to the following structure: ##STR13## R is selected from; ##STR14## or ##STR15## n has a value of 1 to 15; m and o independently range from 0 to 5; R 1 , R 2  and R 3  independently selected from ##STR16##  wherein R 4  and R 5  may be the same or different saturated aliphatic groups; EO is ethylene oxide; PO is a propylene oxide group; x, y and z are independently between 0 and 10, said ethylene and propylene oxide being present in block or random manner by optionally premixing the oxides and the total content of the alcohol derived portion of the molecule, in each instance, ranging from about 12 to about 40 carbon atoms.   
     
     
       6. The compound of claim 5 wherein R 4  and R 5  each independently range from C 6  H 13  to C 10  H 21  and x, y and z each independently range from 0 to 2. 
     
     
       7. The compound of claim 5 wherein R 4  is C 6  H 13 ,   R 5  is C 10  H 21 , and   x, y and z are each 0.   
     
     
       8. A compound conforming to the following structure: ##STR17## wherein; R 1 , R 2  and R 3  are independently selected from; ##STR18## R 4  and R 5  may be the same or different saturated aliphatic groups; EO is ethylene oxide, PO is a propylene oxide group,   x, y and z are independently between 0 and 10 and the total carbon content of the alcohol derived portion of the molecule, in each instance, ranging from about 12 to about 40 carbon atoms.   
     
     
       9. The compound of claim 8 wherein R 4  and R 5  each independently range from C 6  H 13  to C 10  H 21  and x, y and z each independently range from 0 to 2. 
     
     
       10. The compound of claim 8 wherein R 4  is C 6  H 13 ,   R 5  is C 10  H 21 , and   x, y and z are each 0.